Container treating machine



Aug. 2%,, W4. H. J. PAYNTER 2,447,523

CONTAINER TREATING MACHINE Filed March 12, 1945 2 Sheets-Shee t 1 INlZflTOR.

H. J. PAYNTER CONTAINER TREATING MACHINE om 4 9 W W Filed March 12, 1945 11v ENTOR.

Patented Aug. 24, 1948 CONTAINER TREATING MACHINE Horace J. Paynter, Union, N. J., assignor to American Can Company, New York, N. Y., a corpora tion of New Jersey Application March 12, 1945, Serial No. 582,313

12 Claims. (01.91-49) The present invention relates to a container or container part treating machine and has particular reference to devices for applying glue or other liquid materials to marginal edge portions of containers or container parts as an incident to the manufacture of the containers.

Inthe manufacture of certain kinds of containers or container parts it is sometimes desirable to apply a liquid coating material to the edge portions of the container or parts. In fibre containers, the coating material may be glue for adhesively securing fibre covers in place onto the ends of the containers. In metal containers, a compound lining material, lacquer, paint or other liquid may be applied for decorative purposes or for sealing end closures to container bodies. Many other such examples, including can bodies and end members may be mentioned. In all such cases, it has been found dlfilcult under high speed operating conditions to insure and control the application of the liquid material onto th extreme edges of the container parts, especially when these parts are made from thin sheet metal or fibre stock.

The instant invention contemplates overcoming this difficulty by providing devices which operate to apply a liquid coating material to the edge portions of a container part as well as to the adjacent marginal portions so that the entire I end portion of the part will be covered with a film of a desired thickness.

An object of the invention is the provision of a liquid applying device wherein controlled quantitles of liquid coating material may be applied to marginal edge portions of containers or container parts.

Another object is the provision of such a liquid applying device wherein a film of liquid coating material may be applied simultaneously to a plurality of surfaces of marginal edge portions of containers or container parts so that the entire end portion of a container or a container part may be fully covered with a film of the material.

Numerous other objects and advantages of the invention will be apparent as it is better understood from the following description, which, tak-- en in connection with the accompanying drawings, discloses a preferred embodiment thereof.

Referring to the drawings:

Figure 1 is a part elevational and part sectional view of a device embodying the instant invention, the view showing the upper end of a fibre container in section and in position in the device, parts of the device and the container being broken away;

Figs. 2 and 3 are plan sectional views taken substantially along the lines 2-2, 3-3 in Fig. 1, with parts broken away; and

Fig. 4 is a fragmentary sectional view taken substantially along the line 6-6 in Fig. 3.

As a preferred embodiment of the instant invention, the drawings illustrate a rotary device- I for applying liquid glue to the entire edge portion,

including the inner and outer surfaces and the edge surface, of a cylindrical tubular fibre contain'er body A preparatory to adhesively securing in place a cover which subsequently may be positioned thereon. However, the invention is equally well adapted to the use of other liquid materials such as lacquer, or paint, or compound lining materials or other substances used in the can makingindustry and for metal or other material container parts from which containers may be produced.

The application of the glue to the marginal edge portion of a container body is. effected by a pair of coacting rotatable members which include an applying disc or element ll (Figs. 1 and 2) and a surrounding pressure and applying ring H. The ring is fioatingly mounted in an eccentric position relative to the applying disc so that at one place in the device as indicated by the line a::c in Fig. 2, the outer periphery of the disc is closely adjacent the inner circumference of the ring, the marginal edge of a container body A being positioned between the disc and the ring so that at this place the body is engaged by both of these members simultaneously.

The marginal edge portion of the container body is inserted between the disc and the ring by pushing the body toward these rotatable members. In the instant case the body is lifted straight up, preferably by a vertically operable lifter pad or the like, and is retained in this ele vated position for the glue applying operation. The lifter pad may be rotatable to permit easy rotation of the body thereon.

Hence when the disc H and the ring I2 are rotated in unison, the container body is frictionally rotated therebetween and any adhesive which is carried by the disc or the ring or by both is I progressively transferred, during this rotation, to

the marginal edge portion or part thereof of the container bodyin a uniform film. When the container body has made one complete revolution,

the marginal edge portion entirely around the -peripheral skirt 29 which ring gear 3 l.

, 3 7 that only those portions of the disc and the rin that are to engage the body will be in the region of the body during the applying operation (in mg. 1)- l The applying disc or element II is mounted on the lower end of a rotatable shaft llwhich is iournaled in an angularly disposed bearing 15- face l8. These faces are disposed at right angles to each other and join to provide a continuous corner-or right angled groove extending entirely around the outer periphery of thedisc. Radial recesses 20 preferably are formed in the face l8 to better hold the glue to be carried on this surface. The angular position of these applying faces relative to the angularly disposed axis of the disc is such as to insure that the faces register with and fully contact the edgeportlon and the inner marginal surface of the positioned container body, simultaneously as the disc rotates, best shown in Fig. l.

The glue or other coating substance to be transferred to the edge and inner marginal surfaces of the container body during the rotation of the disc H first may be applied to the faces I 8, I! of the disc in any suitable manner and in the desired quantity. Forexample the drawings show such an application of glue to-the disc by way of a supply pipe 21 which leads from a suitable source'of supply of the coating material. The discharge end of the pipe is disposed adjacent the applying surfaces l8. IQ of the disc at g a place where the space between the disc and the eccentrically disposed ring it is greatest. This is best shown in Fig. 2. A valve 22 connected into the pipe may be used to regulate the flow of the coating material t pipe.

The pressure and applying ring I! is part of a floating rotatable head'25 which surrounds the applying disc H and which is eccentrically disposed thereto. The head includes an outer annular support plate 2 6 which rests on the upper surface of the ring driving gear I! on the drive shaft H. The outer face or top of the plate 26 is formed with a large clearance hub 21 which terminates in an upper flange 28 and which loosely surrounds the disc drive shaft H. The bottom of the plate is formed with 9. depending encloses an internal The ring gear 3| is disposed in the'plane of the driving gear I! and meshes with the gear I! at of the driving gear I! and againstdisplacement therefrom by an inner annular support plate;33

which fits in the space between the bottom of the driving gear I? and the top of the applying disc ll (see Fig. 1). Thus the head is locked against displacement. The'inner support plate .33 is disposed in a recess 34 formed in the pressu e ring The shaft may be ro-,

from the discharge end of I2. Ring l2 clamps tightly against the bottom of the inner plate 33.

- The four principal members of the head 2!, namely, the outer support plate 26, the ring gear 3!, the inner support plate 33, and the pressure ring l2 are all held together as a unitary structure by a plurality of screws 36 which are located at spaced intervals around the head; These\ screws extend through' holes formed in the three tends entirely around the inner surface of the the place where the applying disc H and the ring; This applying face is disposed at such an angle to the axis of the ring that it is parallel with and fully contacts the outer marginal surface of the container body to be coated, as best shown in Fig. 1.

Where glue is to be transferredto the outer marginal surface of the container body it is delivered to the applying face ill-of the ring 12 in any suitable manner. By way of example, the

' drawings illustrate the glue being brought in by a. pipe 38 which leads from any suitable source of supply of the coating material. The discharge end of the pipe is bent into close association with I the applying face 31 at the place where the ring I! and the disc H are spaced furthest apart (Fig. 2). A valve 39 connected into the pipe is provided to control the flow of glue from the onto the applying face 31.

The normal space betweenthe glue applying face is of the disc I I and the applying face 31 of the ring 12 where they are closest together and where they engage against a container body A to be coated, is slightly less than the thickness of the container body so that pressure can be brought against the body-by these faces to properly apply the glue to,the body. This pressure is brought about through the pressure ring 12. For this purpose the pressure ring is yieldably mounted and is. maintained under spring pressure.

The spring pressure onthe pressure ring 12 is maintained by a compression spring 43 (Fig.

1) which is housed in the upper end of a pressure finger 44 disposed adjacent the drive shaft bearv down along the bearing and intermediate its length it is mounted on a pivot pin 45 carried in a pair of lugs 46 that project out from the bear-- ing.

The lower end of the pressure finger engages against the outer edge of a pressure shoe 4! (Figs. 1 and 3) that rests on top of the outer annular support plate 26 of the head 25, and occupies the space between the plate and the flange 28 on the hub 21. The inner edge of the shoe is curved and extends substantially half way around the hub.

The side'edges of the shoe are formed with laterallyproiecting tongues 48 (Fig. 4). These tongues are slidably disposed inslideways 49 in a pair of oppositely located arms 5| which extend down from the sides of the bearing ii. The slideways are disposed parallel with the outer support plate 28 of the head 25and are also parallel with the line :r-zr in Fig. 2.

' With this construction of yieldabie and. floating mounting for the head 25, any lateral movement of the. head, including the pressure ring I2 is limited to a path of travel along the line":ra: in Fig. 2. It should'be understood that this travel is only slight and amounts to a mere few thousandths of an inch. In no case is th travel sufficient to unmesh the driving gear I from the ring gear 3l. This sliding connection with .the bearing I! also serves to support the head an the disc il housed within the head.

Hence when the marginal edge of the container body A to be coated, is introduced into the space between the disc II and the .ring l2, as by elevating or pushing the body upwardly by means of a vertically movable lifter pad or the like (not shown) as hereinbefore mentioned. The body forces the ring outwardly to a slight extent against the resistance of the spring 43.

causes the pressure ring ,I2 to press inwardlyagainst the applying faces l8, [9 of the disc ll This action to receive the adhesive from these faces onto the edge surface and the inner marginal surface of the body. Simultaneously with this pressing action the glue on the applying, surface 31 of the pressure ring is applied to theouter marginal surface of the body. In this manner the entire marginal edge portion of a container body may be rapidly coated with adhesive or other substances as the disc II and the ring i2 rotate as hereinbefore mentioned.

. and container parts. the combination of a pair of rotatable members disposed one within the other in relatively eccentric positions and having oppositely disposed faces engageable simultaneously with opposing surfaces of a marginal edge portion of a container part inserted between said faces, means for depositing on at least one of saidfaces a quantity of liquid coating material for rotatable members, one of said members beinglr'otatable on a fixed axis and the other rotatable member'having a floating movement laterally of said axis to provide relative lateral movement between said'members, said members being disposed one within the other in radial relation to their axis of rotation and having oppositely disposed The body is thereafter removed by lowering it from its-position in the head, and is discharged.

to any suitable place of deposit. The frictional tages. the form hereinbefore described being merely-a preferred embodiment thereof.

I claim:

1. In a device for applying liquid coating material to marginal edge portions of containers and container parts; the combination of a pair of rotatable members disposed one within the other in radial relation to their axis of rotation and having oppositely disposed faces engageable simultisineonsly with opposite surfaces of a marginal edge ortion of a container part inserted between said faces. means for depositing on said faces a quantity of liquid coating material for transfer to said container part. and means for rotating said members to effect the transfer of the coating material to the container part from the faces on which it is carried.

2. In a device for applying liquid coating material to marginal edge portions of containers and container parts, the combination of a pair oi rotatable-members disposed one within the other and having oppositely disposed applying faces engageable simultaneously with opposite surfaces of a marginal edge portion of a container part inserted between said applying faces. one of said applying faces being disposed at an angle to the axis of rotation of said members, the rotation of said members being about a fixed axis disposed at an angle to the vertical so that container parts of different dimensions may be engaged by the faces of said members. means for depositing on at least one of said faces a quantity of liquid coating material for transfer to saidcontainer part. and means for rotating said members to effect the faces engageable simultaneously with opposite surfaces of a marginal edge portion of a container part inserted between said faces, means for depositing on at least one of said faces a quantity of liquid coating material for transfer to said container part, and means for rotating'said members to effect the transfer of the coating material to the container part from the face on which it is carried.

5. In a device for applying liquid coating material to marginal edge portions ofcontainers and container :parts, the combinationjorf a pair of:

rotatable members disposed one within the other in radial relation to their axis of rotation and having oppositely disposed faces engageable simultaneously with opposite surfaces of a'marginal edge portion of a container'part inserted between-said faces, one of said members having a floating mounting, pressure means for yieldingly holding the member having the floating mount;

ing in operative position relative to'the other of said member, means for depositing on at least one of said faces a quantity of liquid coating material for transfer to said container part, and means for rotating said members to effect the transfer of the coating material to the container part from the face on which it'is carried 6. In a device for applying liquid coating material to marginal edge portions of containers and'container parts. the combination of a rotatable disc, a rotatable ring surrounding said disc, said disc and said ring havingoppositely disposed faces engageable simultaneously with opposing surfaces of a marginal edge portion of a container part inserted between said faces, means for depositing on at least oneof said faces a quantity I surrounding said disc. said disc and said ring having oppositely disposed faces engageable simultaneously with opposing surfaces of a marginal edge portion of a container part inserted between said faces, means for depositing on said faces a quantity of liquid coating material for transfer to said container part, and means for rotating said members in unison to effect the transfer of the coating material to the container part from the face on which it is carried.

8-. In a device for applying liquid coating material to marginal edge portions of containers and container parts, the combination of a rotatable applying disc having two adjacent angularly disposed applying faces one of which is engageable with the edge of a part to be coated and the other engageable with a marginal portion adjacent said edge, a rotatable app in pressure ring surrounding said applying disc and having an applying face engageable with a marginal portion of said container part on an opposite side thereof and disposed adjacent the edge of said container part, means for rotating said disc and said ring in unison, and means for depositing on the applying faces of said disc and said ring a quantity of liquid coating material for transfer to the edge and marginal portions of a container part inter- 8 against the faces of said applying member to receive the film of coating material therefrom.

11. In a device for applying liquid coatingmae means for depositing on said applying faces a quantity of liquid coating material for transfer to the edge and marginal portions of said container part so that these portions will be fully covered with a film of coating material, an annular pressure member rotatably surrounding said posed between said disc and said ring so that these portions of the container part'will be fully covered with a film of the coating material.

9. In a device for applying liquid coating material to marginal edge portions of containers and container parts, the combination of a rotatable applying disc having means for rotating the same,

7 a rotatable applying pressure ring surrounding of liquid coating material for transfer to the marginal portion of a container part interposed between said disc and said ring so that these portions of. the container part will be, fully covered with a film of the coating material.

10. In a device for applying liquid coating material to marginal edge portions of containers and container parts, the combination of a rotatable applying member having two adiacently disposed applying faces one of which is engageable with the edge of a container part to be coated and the other of which is engageable with a marginal edge portion thereof adjacent the edge of the part to be coated,- means for depositing on applying member in eccentric relation to the axis of the latter, said pressure member engaging an outer marginal edge portion of said container part for-pressing the marginal edge portion of the container part against the faces of said applying member to receive the film of coating material therefrom, and means for depositing on said pressure member a quantity of liquid coating material for transfer to the outer marginal edge portion of the container part simultaneously with the application of the coating material to the edge portion and the sinner marginal portion.

12. In a device for applying liquid coating material to marginal edge portions of containers and container parts, the combination of an applying member having two adjacently disposed applying faces one of which is engageable with the edge of a part to be coated and the other of which is engageable with a marginal portion adjacent said edge of the part to'becoated, both of said applying faces being disposed at an angle to the axis of rotation of said member, means for depositing on said applying faces a quantity of liquid coating material for transfer to the edge and'marginal portions of said container part so that these portions will be fully covered with a, film of coating said applying faces a quantity of liquid coating material for transfer to the edge and marginal portions of said container part so that these por-' tions will be fully covered with a film of coating material, and an annular pressure member rotatably surrounding said applying member in ecflcentric relation to the axis of the latter, said material, an annular pressure member rotatably surrounding said applying member in eccentric relation to the axis of the latter, said pressure member engaging said container part for pressing the marginal edge portion of the container part against the faces of said applying element to receive the film of coating material therefrom, and

means for yieldably holding said pressure member lhe following references are of record in the file of this patent:

UNITED srarns PATENTS Number Name Date 2,382,236 Laxo Aug. 14, 1945 2,384,556 Laxo Sept. 11, 1945 

